2.2.0.25falsefalse10401 - Disclosure - Fair Value Disclosuretruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011
USD ($)
USD ($) / shares
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3false0us-gaap_FairValueDisclosuresTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel| 1falsefalsefalse00<div> <div class="WordSection1">
<p style="margin: 10.05pt 0in 0pt;"><b><font style="font-size: 10pt;" class="_mt">(4) Fair Value Disclosure </font></b></p>
<p style="text-indent: 30.6pt; margin-bottom: 0pt;"><font style="font-size: 10pt;" class="_mt">Our financial instruments consisted of cash and cash equivalents, auction rate securities, accounts receivable, accounts payable and long-term notes including the current maturities. The carrying values of the following items approximate their fair values: cash and cash equivalents, auction rate securities, accounts receivable and accounts payable. The carrying value of our long-term notes, including the current maturities, reflects original cost net of unamortized discounts and other and was $<font class="_mt">11.408</font> billion and $<font class="_mt">11.583</font> billion as of March 31, 2011 and December 31, 2010, respectively. For additional information, see Note 56—Debt. </font></p>
<p style="margin: 8.35pt 0in 0pt;"><font style="font-size: 1pt;" class="_mt"> </font> </p>
<p style="text-indent: 30.6pt; margin: 0in 0in 0pt;"><font style="font-size: 10pt;" class="_mt">Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between independent and knowledgeable parties who are willing and able to transact for an asset or liability at the measurement date. We use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then we rank the estimated values based on the reliability of the inputs used following the fair value hierarchy set forth by the Financial Accounting Standards Board. </font></p>
<p style="text-indent: 30.6pt; margin: 8.35pt 0in 0pt;"><font style="font-size: 10pt;" class="_mt">The table below presents the fair values for auction rate securities and long-term notes including the current maturities, as well as the input levels used to determine these fair values as of March 31, 2011 and December 31, 2010: </font></p>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 10pt;" class="_mt"> </font> </p>
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<td style="padding-bottom: 0in; padding-left: 0in; width: 7%; padding-right: 0in; padding-top: 0in;" valign="bottom" width="7%"> </td>
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<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt">Fair Value As Of</font></b></p></td>
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<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt"> Level </font></b></p></td>
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<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt">March 31, 2011</font></b></p></td>
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<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt">December 31, 2010</font></b></p></td>
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<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt">(Dollars in millions)</font></b></p></td>
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<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Assets:</font></p></td>
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<p class="MsoNormal"> </p></td>
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<p style="text-indent: -12pt; margin-left: 24pt;"><font style="font-size: 10pt;" class="_mt">Auction rate securities</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">3</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" nowrap="nowrap">
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<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">$</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt"> $92</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt"> 92</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td></tr>
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<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
<td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: black 1pt solid; border-right: medium none; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Total assets</font></p></td>
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<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
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<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">$</font></p></td>
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<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">$92</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">92</font></p></td>
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<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Liabilities:</font></p></td>
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<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 24pt;"><font style="font-size: 10pt;" class="_mt">Long-term notes, including the current maturities</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">2</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">$</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">$12,292</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">12,480</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td></tr>
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<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom"> </td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
<td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: black 1pt solid; border-right: medium none; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
<td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: black 1pt solid; border-right: medium none; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Total liabilities</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">$</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">$12,292</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">12,480</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td></tr>
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<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: black 3px double; border-right: medium none; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
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<p class="MsoNormal"> </p></td>
<td style="border-bottom: medium none; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: black 3px double; border-right: medium none; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;">
<p class="MsoNormal"> </p></td></tr></table></div>
<p style="text-indent: 30.6pt; margin: 8.35pt 0in 0pt;"><font style="font-size: 10pt;" class="_mt">The three levels of the fair value hierarchy are as follows: </font></p>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 10pt;" class="_mt"> </font> </p>
<div align="center">
<table style="width: 84%;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="84%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; width: 15%; padding-right: 0in; padding-top: 0in;" width="15%"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 4%; padding-right: 0in; padding-top: 0in;" valign="bottom" width="4%"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 81%; padding-right: 0in; padding-top: 0in;" width="81%"> </td></tr>
<tr><td style="border-bottom: black 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p style="margin: 0in 0in 0.85pt;"><b><font style="font-size: 7.5pt;" class="_mt">Input Level</font></b></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="border-bottom: black 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom">
<p style="margin: 0in 0in 0.85pt;"><b><font style="font-size: 7.5pt;" class="_mt">Description of Input</font></b></p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Level 1</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">Observable inputs such as quoted market prices in active markets.</font></p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Level 2</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">Inputs other than quoted prices in active markets that are either directly or indirectly observable.</font></p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Level 3</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">Unobservable inputs in which little or no market data exists.</font></p></td></tr></table></div>
<div>
<div align="center">
<table style="width: 84%;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="84%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom"> </td></tr></table></div>
<p style="text-indent: 30.6pt; margin: 8.35pt 0in 0pt;"><font style="font-size: 10pt;" class="_mt">We determined the fair value of our auction rate securities using a probability-weighted discounted cash flow model that takes into consideration the weighted average of the following factors as of March 31, 2011 and December 31, 2010, respectively: </font></p>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 8.5pt;" class="_mt"> </font> </p>
<table style="width: 100%; border-collapse: collapse;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; width: 9%; padding-right: 0in; padding-top: 0in;" width="9%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 3%; padding-right: 0in; padding-top: 0in;" valign="top" width="3%">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">•</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 1%; padding-right: 0in; padding-top: 0in;" valign="top" width="1%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p><font style="font-size: 10pt;" class="_mt">coupon rate of 5.49% and 5.44%; </font></p></td></tr></table>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 8.5pt;" class="_mt"> </font> </p>
<table style="width: 100%; border-collapse: collapse;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; width: 9%; padding-right: 0in; padding-top: 0in;" width="9%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 3%; padding-right: 0in; padding-top: 0in;" valign="top" width="3%">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">•</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 1%; padding-right: 0in; padding-top: 0in;" valign="top" width="1%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p><font style="font-size: 10pt;" class="_mt">probability that we will be able to sell the securities in an auction or that the securities will be redeemed early of 75.43% and 75.23%; </font></p></td></tr></table>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 8.5pt;" class="_mt"> </font> </p>
<table style="width: 100%; border-collapse: collapse;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; width: 9%; padding-right: 0in; padding-top: 0in;" width="9%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 3%; padding-right: 0in; padding-top: 0in;" valign="top" width="3%">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">•</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 1%; padding-right: 0in; padding-top: 0in;" valign="top" width="1%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p><font style="font-size: 10pt;" class="_mt">probability that a default will occur of 20.72% and 20.98% with a related recovery rate of 55.00% for both periods; and </font></p></td></tr></table>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 8.5pt;" class="_mt"> </font> </p>
<table style="width: 100%; border-collapse: collapse;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; width: 9%; padding-right: 0in; padding-top: 0in;" width="9%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 3%; padding-right: 0in; padding-top: 0in;" valign="top" width="3%">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">•</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 1%; padding-right: 0in; padding-top: 0in;" valign="top" width="1%">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p><font style="font-size: 10pt;" class="_mt">discount rate of 7.88% and 7.81%. </font></p></td></tr></table></div>
<p style="text-indent: 30.6pt; margin: 8.35pt 0in 0pt;"><font style="font-size: 10pt;" class="_mt">We determined the fair values of our long-term notes including the current maturities based on the average of market bids received from certain investment banks that are considered knowledgeable about market transactions in our notes. </font></p>
<p style="margin: 8.35pt 0in 0pt;"><font style="font-size: 1pt;" class="_mt"> </font> </p>
<p style="text-indent: 30.6pt; margin: 0in 0in 0pt;"><font style="font-size: 10pt;" class="_mt">The table below presents a rollforward of our auction rate securities valued using Level 3 inputs for the three months ended March 31, 2011: </font></p>
<p style="margin: 0in 0in 0pt;"><font style="font-size: 10pt;" class="_mt"> </font> </p>
<div align="center">
<table style="width: 68%;" class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="68%">
<tr><td style="padding-bottom: 0in; padding-left: 0in; width: 76%; padding-right: 0in; padding-top: 0in;" width="76%"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; width: 22%; padding-right: 0in; padding-top: 0in;" valign="bottom" width="22%"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;"> </td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;"> </td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="border-bottom: black 1pt solid; border-left: medium none; padding-bottom: 0in; padding-left: 0in; padding-right: 0in; border-top: medium none; border-right: medium none; padding-top: 0in;" valign="bottom" colspan="2">
<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt">Auction Rate<br />Securities</font></b></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom" colspan="2">
<p style="text-align: center;" class="MsoNormal" align="center"><b><font style="font-size: 7.5pt;" class="_mt">(Dollars in millions)</font></b></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Balance at December 31, 2010</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">$</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom">
<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">92</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; background: #bcddf7; padding-top: 0in;" valign="bottom" nowrap="nowrap">
<p class="MsoNormal"> </p></td></tr>
<tr><td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="top">
<p style="text-indent: -12pt; margin-left: 24pt;"><font style="font-size: 10pt;" class="_mt">Transfers into (out of) Level 3</font></p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
<td style="padding-bottom: 0in; padding-left: 0in; padding-right: 0in; padding-top: 0in;" valign="bottom">
<p class="MsoNormal"> </p></td>
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<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">—</font></p></td>
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<p style="text-indent: -12pt; margin-left: 24pt;"><font style="font-size: 10pt;" class="_mt">Additions</font></p></td>
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<p style="text-indent: -12pt; margin-left: 24pt;"><font style="font-size: 10pt;" class="_mt">Dispositions and settlements</font></p></td>
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<p style="text-indent: -12pt; margin-left: 24pt;"><font style="font-size: 10pt;" class="_mt">Realized and unrealized (losses) gains:</font></p></td>
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<p style="margin-left: 0.5in;"><font style="font-size: 10pt;" class="_mt">Included in other income (expense), net</font></p></td>
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<p style="margin-left: 0.5in;"><font style="font-size: 10pt;" class="_mt">Included in other comprehensive income</font></p></td>
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<p style="text-indent: -12pt; margin-left: 12pt;"><font style="font-size: 10pt;" class="_mt">Balance at March 31, 2011</font></p></td>
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<p class="MsoNormal"><font style="font-size: 10pt;" class="_mt">$</font></p></td>
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<p style="text-align: right;" class="MsoNormal" align="right"><font style="font-size: 10pt;" class="_mt">92</font></p></td>
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<p class="MsoNormal"> </p></td></tr></table></div></div> </div>(4) Fair Value Disclosure
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